Objective To compare the efficacy and safety of erector spinae plane block(ESPB)and thoracic paravertebral block(TPVB)in preventing acute post-surgical pain syndrome(PSP)of breast cancer.Methods The following databases,both domestic and international,including Embase,Cochrane Library,Web of Science,PubMed,CNKI,VIP,Wanfang,and Sinomed,were searched via computer to gather clinical randomized controlled trials(RCTs)on ESPB and TPVB for breast cancer patients.The included literature was evaluated using the Cochrane bias risk assessment tool to assess quality,and meta-analysis was performed using Review Manager 5.4 software and Stata 17.0 software.Results This study comprised 14 RCTs,with a total of 1079 patients,including 540 ESPB patients and 539 TPVB patients.The analysis results indicated that there was a significant difference in pain scores during postoperative rest between ESPB and TPVB during 3-4 h(I2=53%,SMD=0.36,95%CI:0.07-0.65,P=0.020)and 5-6 h(I2=80%,SMD=0.53,95%CI:0.05-1.01,P=0.030),with TPVB being superior to ESPB.However,there was no significant difference in pain scores during postoperative rest between ESPB and TPVB at 1-2 h(I2=75%,SMD=0.28,95%CI:-0.03-0.60,P=0.080),7-8 h(I2=89%,SMD=0.24,95%CI:-0.47-0.94,P=0.510),12 h(I2=90%,SMD=0.1,95%CI:-0.40-0.60,P=0.690),24 h(I2=78%,SMD=0.33,95%CI:-0.04-0.70,P=0.080),and 48 h(I2=85%,SMD=-0.05,95%CI:-0.52-0.42,P=0.830).For the pain score during postoperative exercise,there was a significant difference between ESPB and TPVB during 3-4 h(I2=0,SMD=0.29,95%CI:0.09-0.48,P=0.004),7-8 h(I2=48%,SMD=0.37,95%CI:0.00-0.73,P=0.050),and 48 h(I2=0,SMD=0.21,95%CI:0.03-0.39,P=0.020),with TPVB being su-perior to ESPB.There was no significant difference between ESPB and TPVB at 1-2 h(I2=89%,SMD=0.42,95%CI:-0.19-1.03,P=0.180),5-6 h(I2=90%,SMD=0.29,95%CI:-0.67-1.24,P=0.560),12 h(I2=81%,SMD=0.25,95%CI:-0.22-0.72,P=0.300),and 24 h(I2=83%,SMD=0.39,95%CI:-0.10-0.89,P=0.120).There was a statistical difference in the operation time of nerve blocks between the two methods,with ESPB taking less time than TPVB(P＜0.001).However,there was no statistical difference in opioid consumption within 24 h after surgery,incidence of nausea and vomiting,and the first PCIA press time(all P＞0.05).Conclusions Compared to ESPB,TPVB tends to result in a decreased pain score after breast cancer surgery,but it also took longer to perform.There was no significant difference be-tween the two methods in terms of opioid consumption at 24 h after surgery,incidence of nausea and vomiting and the first PCIA press time.

Objective To compare the efficacy and safety of erector spinae plane block(ESPB)and thoracic paravertebral block(TPVB)in preventing acute post-surgical pain syndrome(PSP)of breast cancer.Methods The following databases,both domestic and international,including Embase,Cochrane Library,Web of Science,PubMed,CNKI,VIP,Wanfang,and Sinomed,were searched via computer to gather clinical randomized controlled trials(RCTs)on ESPB and TPVB for breast cancer patients.The included literature was evaluated using the Cochrane bias risk assessment tool to assess quality,and meta-analysis was performed using Review Manager 5.4 software and Stata 17.0 software.Results This study comprised 14 RCTs,with a total of 1079 patients,including 540 ESPB patients and 539 TPVB patients.The analysis results indicated that there was a significant difference in pain scores during postoperative rest between ESPB and TPVB during 3-4 h(I2=53%,SMD=0.36,95%CI:0.07-0.65,P=0.020)and 5-6 h(I2=80%,SMD=0.53,95%CI:0.05-1.01,P=0.030),with TPVB being superior to ESPB.However,there was no significant difference in pain scores during postoperative rest between ESPB and TPVB at 1-2 h(I2=75%,SMD=0.28,95%CI:-0.03-0.60,P=0.080),7-8 h(I2=89%,SMD=0.24,95%CI:-0.47-0.94,P=0.510),12 h(I2=90%,SMD=0.1,95%CI:-0.40-0.60,P=0.690),24 h(I2=78%,SMD=0.33,95%CI:-0.04-0.70,P=0.080),and 48 h(I2=85%,SMD=-0.05,95%CI:-0.52-0.42,P=0.830).For the pain score during postoperative exercise,there was a significant difference between ESPB and TPVB during 3-4 h(I2=0,SMD=0.29,95%CI:0.09-0.48,P=0.004),7-8 h(I2=48%,SMD=0.37,95%CI:0.00-0.73,P=0.050),and 48 h(I2=0,SMD=0.21,95%CI:0.03-0.39,P=0.020),with TPVB being su-perior to ESPB.There was no significant difference between ESPB and TPVB at 1-2 h(I2=89%,SMD=0.42,95%CI:-0.19-1.03,P=0.180),5-6 h(I2=90%,SMD=0.29,95%CI:-0.67-1.24,P=0.560),12 h(I2=81%,SMD=0.25,95%CI:-0.22-0.72,P=0.300),and 24 h(I2=83%,SMD=0.39,95%CI:-0.10-0.89,P=0.120).There was a statistical difference in the operation time of nerve blocks between the two methods,with ESPB taking less time than TPVB(P＜0.001).However,there was no statistical difference in opioid consumption within 24 h after surgery,incidence of nausea and vomiting,and the first PCIA press time(all P＞0.05).Conclusions Compared to ESPB,TPVB tends to result in a decreased pain score after breast cancer surgery,but it also took longer to perform.There was no significant difference be-tween the two methods in terms of opioid consumption at 24 h after surgery,incidence of nausea and vomiting and the first PCIA press time.

Objective: To construct a prediction model for preeclampsia (PE) risk in twin-pregnant women, so as to provide the basis for early screening and prevention of PE. Methods: A total of 467 twin-pregnant women who underwent prenatal examination and delivered at Huzhou Maternal and Child Health Hospital were selected. Sixty cases with preeclampsia (PE) were included in the case group, and 60 women without PE were included in the control group. General information, blood biochemical indicators and uterine artery resistance index (UtA-RI) were collected. A logistic regression model was used to screen predictive factors and establish a nomogram. The Bootstrap method was performed for the internal validation; the receiver operating characteristic (ROC) curve, calibration curve and decision curve analysis were employed to evaluate the discrimination, calibration and clinical utility of the nomogram, respectively. Results: In the case group, there were 47 individuals (78.33%) aged younger than 35 years, 21 individuals (35.00%) with pre-pregnancy body mass index (BMI) of 25 kg/m2 and above, and 33 individuals (55.00%) with in vitro fertilization. In the control group, there were 57 individuals (95.00%) aged younger than 35 years, 8 individuals (13.33%) with pre-pregnancy BMI of 25 kg/m2 and above, and 39 individuals (65.00%) with natural pregnancy. Multivariable logistic regression analysis identified age, pre-pregnancy BMI, method of conception, placental growth factor (PLGF) and UtA-RI as risk prediction factors for PE in twin-pregnant women. The established nomogram had an area under the ROC curve of 0.827 (95%CI: 0.755-0.899), a sensitivity of 0.767, a specificity of 0.733, a good discrimination and calibration, and a relatively high clinical net benefit. Conclusion The nomogram established by age, pre-pregnancy BMI, method of conception, PLGF and UtA-RI has a good predictive value for the risk of PE in twin-pregnant women.

Relapsing polychondritis is a rare systemic autoimmune disease, which involves a wide range of sites, has atypical symptoms, and has no specific means of examination, resulting in very difficult early diagnosis, which seriously affects the prognosis of patients. We report a case of an elderly female patient with respiratory symptoms, discomfort symptoms only appeared for more than 1 month, chest CT and laryngoscopy showed no obvious abnormalities. The effect of antibacterial, antiviral and anti-inflammatory treatment is not good. 18F-FDG PET/CT showed that trachea, bronchus, nasal cartilage, thyroid cartilage, cricoid cartilage were involved. After pathological examination, the patient was clinically diagnosed as relapsing polychondritis. After treatment with methylprednisolone and tripterygium glycoside tablets, the patient had no recurrence at present.

Objective Based on intra-set correlation analysis, this paper deconstructs the clinical medical records of traditional Chinese medicine (TCM) Master ZHOU Zhongying in treating thyroid cancer, and analyzes the experience in “mechanism-syndrome-medicine-prescription” for thyroid cancer. Methods Through Medcase data processing platform, based on Frequent Pattern (FP)-Growth enhanced correlation analysis algorithm, the medical records of Professor ZHOU Zhongying for the treatment of thyroid cancer from June 1, 2001 to February 28, 2015 were analyzed within the set. Results This study involved 43 medical records, 43 patients, and 167 visits. After processing intra-set correlations, 28 groups of highly correlated symptoms, 21 groups of highly correlated tongue images, 10 groups of highly correlated pulse conditions, 28 groups of highly correlated pathogenesis, 34 groups of highly correlated herbs, and 26 groups of highly correlated western medicine diagnosis were selected. Professor ZHOU Zhongying treats thyroid cancer according to syndrome differentiation. Symptoms with more association rules included neck swelling, neck pain, cough, and dry mouth; tongue images with more association rules included dark purple tongue, dark red tongue, and fissured tongue; pulse conditions with more association rules were wiry pulse, thready pulse, small pulse, and slippery pulse; the pathogenesis with more association rules was phlegm and blood stasis, damp-heat accumulation, and impairment of both Qi and Yin; herbs with more association rules were Chaihu (Bupleuri Radix), Zeqi (Sun Euphoribiae Herb), and Tiandong (Asparagi Radix); western medicine diagnosis with more association rules included thyroid cancer, insomnia, and chronic gastritis. Conclusion Thyroid cancer mostly presents as deficiency in origin and excess in manifestations. The basic pathogenesis is phlegm and blood stasis, damp-heat accumulation, and impairment of both Qi and Yin, which are closely related to liver, kidney, and spleen. Professor ZHOU Zhongying adopts both attack and supplement approaches as the general treatment principle, with a strong emphasis on regulating Qi and relieving depression, eliminating phlegm and resolving stagnation, eliminating dampness and turbidity, clearing fire and destroying poison, moistening dryness and softening hard mass, invigorating Qi and nourishing Yin, and paying attention to nourishing liver and kidney, invigorating spleen and stomach, while protecting the heart and lungs.

Objective:To explore the clinical characteristics of pediatric glucose transporter type 1 deficiency syndrome (GLUT1 DS), evaluate the efficacy and safety of ketogenic diet therapy (KDT).Methods:Clinical data of 19 children with GLUT1 DS admitted to Children′s Hospital of Fudan University, Tianjin Children′s Hospital, Shenzhen Children′s Hospital, Children′s Hospital of Nanjing Medical University and Jiangxi Provincial Children′s Hospital between 2015 and 2019 were collected retrospectively. The first onset symptom, main clinical manifestations, cerebrospinal fluid features and genetic testing results of patients were summarized, the efficacy and safety of ketogenic diet treatment were analyzed. Results:Among the 19 cases, 13 were males and 6 females. The age of onset was 11.0 (1.5-45.0) months,the age of diagnosis was 54.0 (2.8-132.0) months. Epilepsy was the first onset symptom of 13 cases. Different forms of tonic-clonic seizures were the most common types of epilepsy (7 cases with generalized tonic-clonic seizures, 5 cases with focal tonic or clonic seizures, 4 cases with generalized tonic seizures). Antiepileptic drugs were effective in 4 cases. Paroxysmal motor dysfunction was present in 12 cases and ataxia was the most common one. All patients had different degrees of psychomotor retardation. Among 17 patients received cerebrospinal fluid examination, cerebrospinal fluid (CSF) glucose level was lower than 2.2 mmol/L and CSF glucose/glycemic index was<0.45 in 16 cases, only 1 case presented normal CSF glucose level (2.3 mmol/L) and normal CSF glucose/glycemic index(0.47). SLC2A1 gene mutations were found in 16 patients, missense, frameshift and nonsense mutations were the common types with 5 cases, 5 cases and 3 cases respectively. All 19 patients were treated with ketogenic diet, which was effective in 18 cases in seizure control, 11 cases in dyskinesia improvement and 18 cases in cognitive function improvement. No serious side effects were reported in any stage of KDT.Conclusions:The diagnosis of GLUT1 DS is often late. It is necessary to improve the early recognition of the disease and perform CSF glucose detection and genetic testing as early as possible. The KDT is an effective and safe treatment for GLUT1 DS, but a small number of patients have not response to diet therapy.

Objective: To investigate the clinical value of laparoscopic peritoneal dialysis catheter implantation in peritoneal chemotherapy for gastric cancer with peritoneal metastasis. Methods: From January 2019 to June 2019, the clinical data of 6 patients diagnosed as gastric cancer with peritoneal metastasis were retrospectively analyzed in the Gastrointestinal Surgery Department of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine. Five were male and 1 was female. The median age was 69.5 (28-77) years. The median body mass index (BMI) was 22.8 (19.6-23.5). All procedures were performed under general anesthesia with endotracheal intubation. The patient′s body position and facility layout in the operating room were consistent with those of laparoscopic gastrectomy. The operator′s position: the main surgeon was located on the right side of the patient, the first assistant stood on the left side of the patient, and the scopist stood between the patient′s legs. Surgical procedure: (1) trocar location: three abdominal trocars was adopted, with one 12 mm umbilical port for the 30° laparoscope (point A). Location of the other two trocars was dependent on the procedure of exploration or biopsy as well as the two polyester cuff position of the peritoneal dialysis catheter: Usually one 5 mm port in the anterior midline 5 cm inferior to the umbilicus point was selected as point B to ensure that the distal end of the catheter could reach the Douglas pouch. The other 5 mm port was located in the right lower quadrant lateral to the umbilicus to establish the subcutaneous tunnel tract, and the proximal cuff was situated 2 cm away from the desired exit site (point C).(2) exploration of the abdominal cavity: a 30° laparoscope was inserted from 12 mm trocar below the umbilicus to explore the entire peritoneal cavity. The uterus and adnexa should be explored additionally for women. Once peritoneal metastasis was investigated and identified, primary laparoscopic peritoneal dialysis catheter implantation was performed so as to facilitate subsequent peritoneal chemotherapy. Ascites were collected for cytology in patients with ascites. (3) peritoneal dialysis catheter placement: the peritoneal dialysis catheter was introduced into the abdominal cavity from point A. Under the direct vision of laparoscopy, 2-0 absorbable ligature was reserved at the expected fixation point of the proximal cuff (point B) for the final knot closure. Non-traumatic graspers were used to pull the distal cuff of peritoneal dialysis catheter out of the abdominal cavity through point B. The 5-mm trocar was removed simultaneously, and the distal cuff was fixed between bilateral rectus sheaths at the anterior midline port site preperitoneally. To prevent subsequent ascites and chemotherapy fluid extravasation, the reserved crocheted wire was knotted. From point C the subcutaneous tunnel tract was created before the peritoneal steath towards the port site lateral to the umbilicus. Satisfactory catheter irrigation and outflow were then confirmed. Chemotherapy regimen after peritoneal dialysis catheterization: all patients began intraperitoneal chemotherapy on the second day after surgery. On the 1st and 8th day of each 3-weeks cycle, paclitaxel (20 mg/m²) was administered through peritoneal dialysis catheter, and paclitaxel (50 mg/m²) was injected intravenously. Meanwhile, S-1 was orally administered twice daily at a dose of 80 mg·m^-2·d^-1 for 14 consecutive days followed by 7-days rest. To observe the patients′ intraoperative and postoperative conditions. Results: All the procedures were performed successfully without intraoperative complications or conversion to laparotomy. No 30 day postoperative complications were observed. The median operative time was 33.5 (23-38) min. The median time to first flatus was 1(1-2) days, and the median postoperative hospital stay was 3 (3-4) days, without short-term complications within 30 days postoperatively. The last follow-up was up to July 10, 2019, and the patients were followed for 4(1-6) months. No ascites extravasation was observed and no death occurred in the 6 patients. There was no catheter obstruction or peritoneal fluid extravasation during and after chemotherapy. Conclusion Laparoscopic peritoneal dialysis catheter implantation was safe and feasible for patients with peritoneal metastasis of gastric cancer. The abdominal exploration, tumor staging and the abdominal chemotherapy device implantation can be completed simultaneously, which could simplify the surgical approach, improve the quality of life for patients and further propose a new direction for the development of abdominal chemotherapy.

Objective: To investigate the prevalence of somatization symptoms and its correlation with social support in patients with depressive disorder. Methods: Two hundred and fourteen hospitalized patients with depressive disorder were recruited. Patients were evaluated with Somatic Symptom Inventory (SSI), Perceived Social Support from Family Scale (PSS-Fa), Social Support Rating Scale (SSRS) and the general questionnaire. Results: The average SSI scores of depressive patients was 49.63±15.53, with 26.2% (56/214) of the patients having moderate to severe level of somatic symptoms. The most common moderate to severe somatic symptoms in depressive patients were "feeling fatigued (61.3%, 131/214), weak (49.5%, 106/214), not feeling well (47.7%, 102/214), feeling faint or dizzy (48.6%, 104/214), or constipation (29.9%, 64/214)" . The average SSRS scores of patients was low (33.24±7.16). The SSI scores and its non-painful dimension (39.05±12.14) were significantly negatively correlated with family support (11.03±3.45) (r=-0.150, P=0.03; r=-0.153, P=0.02) .The SSI scores, and its somatization dimension scores (49.63±15.53) and painful dimension scores (10.58±4.18) were negatively correlated with the total scores of social support (33.24±7.16) (r=-0.164, P=0.02; r=-0.183, P=0.01; r=-0.136, P<0.05) and subjective support (19.14±4.81) (r=-0.167, P=0.02; r=-0.163, P=0.02; r=-0.177, P=0.01) . The SSI scores and its non-painful dimension of patients were negatively correlated with support utilization (r=-0.179, P=0.01; r=-0.194, P=0.01) . Conclusion Somatic symptoms are prevalent and severe in patients with depressive disorder. The somatic symptoms of depressive patients was closely correlated with decreased social support, especially low subjective support and support utilization.

Objective To investigate the clinical value of laparoscopic peritoneal dialysis catheter implantation in peritoneal chemotherapy for gastric cancer with peritoneal metastasis. Methods From January 2019 to June 2019, the clinical data of 6 patients diagnosed as gastric cancer with peritoneal metastasis were retrospectively analyzed in the Gastrointestinal Surgery Department of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine. Five were male and 1 was female. The median age was 69.5 (28?77) years. The median body mass index (BMI) was 22.8 (19.6?23.5). All procedures were performed under general anesthesia with endotracheal intubation. The patient′s body position and facility layout in the operating room were consistent with those of laparoscopic gastrectomy. The operator′s position: the main surgeon was located on the right side of the patient, the first assistant stood on the left side of the patient, and the scopist stood between the patient′s legs. Surgical procedure: (1) trocar location: three abdominal trocars was adopted, with one 12 mm umbilical port for the 30°laparoscope (point A). Location of the other two trocars was dependent on the procedure of exploration or biopsy as well as the two polyester cuff position of the peritoneal dialysis catheter: Usually one 5 mm port in the anterior midline 5 cm inferior to the umbilicus point was selected as point B to ensure that the distal end of the catheter could reach the Douglas pouch. The other 5 mm port was located in the right lower quadrant lateral to the umbilicus to establish the subcutaneous tunnel tract, and the proximal cuff was situated 2 cm away from the desired exit site (point C).(2) exploration of the abdominal cavity: a 30°laparoscope was inserted from 12 mm trocar below the umbilicus to explore the entire peritoneal cavity. The uterus and adnexa should be explored additionally for women. Once peritoneal metastasis was investigated and identified, primary laparoscopic peritoneal dialysis catheter implantation was performed so as to facilitate subsequent peritoneal chemotherapy. Ascites were collected for cytology in patients with ascites. (3) peritoneal dialysis catheter placement: the peritoneal dialysis catheter was introduced into the abdominal cavity from point A. Under the direct vision of laparoscopy, 2?0 absorbable ligature was reserved at the expected fixation point of the proximal cuff (point B) for the final knot closure. Non?traumatic graspers were used to pull the distal cuff of peritoneal dialysis catheter out of the abdominal cavity through point B. The 5?mm trocar was removed simultaneously, and the distal cuff was fixed between bilateral rectus sheaths at the anterior midline port site preperitoneally. To prevent subsequent ascites and chemotherapy fluid extravasation, the reserved crocheted wire was knotted. From point C the subcutaneous tunnel tract was created before the peritoneal steath towards the port site lateral to the umbilicus. Satisfactory catheter irrigation and outflow were then confirmed. Chemotherapy regimen after peritoneal dialysis catheterization: all patients began intraperitoneal chemotherapy on the second day after surgery. On the 1st and 8th day of each 3?weeks cycle, paclitaxel (20 mg/m2) was administered through peritoneal dialysis catheter, and paclitaxel (50 mg/m2) was injected intravenously. Meanwhile, S?1 was orally administered twice daily at a dose of 80 mg·m-2·d-1 for 14 consecutive days followed by 7?days rest. To observe the patients′ intraoperative and postoperative conditions. Results All the procedures were performed successfully without intraoperative complications or conversion to laparotomy. No 30 day postoperative complications were observed. The median operative time was 33.5 (23?38) min. The median time to first flatus was 1(1?2) days, and the median postoperative hospital stay was 3 (3?4) days, without short?term complications within 30 days postoperatively. The last follow?up was up to July 10, 2019, and the patients were followed for 4(1?6) months. No ascites extravasation was observed and no death occurred in the 6 patients. There was no catheter obstruction or peritoneal fluid extravasation during and after chemotherapy. Conclusion Laparoscopic peritoneal dialysis catheter implantation was safe and feasible for patients with peritoneal metastasis of gastric cancer. The abdominal exploration, tumor staging and the abdominal chemotherapy device implantation can be completed simultaneously, which could simplify the surgical approach, improve the quality of life for patients and further propose a new direction for the development of abdominal chemotherapy.

Objective To investigate the clinical value of laparoscopic peritoneal dialysis catheter implantation in peritoneal chemotherapy for gastric cancer with peritoneal metastasis. Methods From January 2019 to June 2019, the clinical data of 6 patients diagnosed as gastric cancer with peritoneal metastasis were retrospectively analyzed in the Gastrointestinal Surgery Department of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine. Five were male and 1 was female. The median age was 69.5 (28?77) years. The median body mass index (BMI) was 22.8 (19.6?23.5). All procedures were performed under general anesthesia with endotracheal intubation. The patient′s body position and facility layout in the operating room were consistent with those of laparoscopic gastrectomy. The operator′s position: the main surgeon was located on the right side of the patient, the first assistant stood on the left side of the patient, and the scopist stood between the patient′s legs. Surgical procedure: (1) trocar location: three abdominal trocars was adopted, with one 12 mm umbilical port for the 30°laparoscope (point A). Location of the other two trocars was dependent on the procedure of exploration or biopsy as well as the two polyester cuff position of the peritoneal dialysis catheter: Usually one 5 mm port in the anterior midline 5 cm inferior to the umbilicus point was selected as point B to ensure that the distal end of the catheter could reach the Douglas pouch. The other 5 mm port was located in the right lower quadrant lateral to the umbilicus to establish the subcutaneous tunnel tract, and the proximal cuff was situated 2 cm away from the desired exit site (point C).(2) exploration of the abdominal cavity: a 30°laparoscope was inserted from 12 mm trocar below the umbilicus to explore the entire peritoneal cavity. The uterus and adnexa should be explored additionally for women. Once peritoneal metastasis was investigated and identified, primary laparoscopic peritoneal dialysis catheter implantation was performed so as to facilitate subsequent peritoneal chemotherapy. Ascites were collected for cytology in patients with ascites. (3) peritoneal dialysis catheter placement: the peritoneal dialysis catheter was introduced into the abdominal cavity from point A. Under the direct vision of laparoscopy, 2?0 absorbable ligature was reserved at the expected fixation point of the proximal cuff (point B) for the final knot closure. Non?traumatic graspers were used to pull the distal cuff of peritoneal dialysis catheter out of the abdominal cavity through point B. The 5?mm trocar was removed simultaneously, and the distal cuff was fixed between bilateral rectus sheaths at the anterior midline port site preperitoneally. To prevent subsequent ascites and chemotherapy fluid extravasation, the reserved crocheted wire was knotted. From point C the subcutaneous tunnel tract was created before the peritoneal steath towards the port site lateral to the umbilicus. Satisfactory catheter irrigation and outflow were then confirmed. Chemotherapy regimen after peritoneal dialysis catheterization: all patients began intraperitoneal chemotherapy on the second day after surgery. On the 1st and 8th day of each 3?weeks cycle, paclitaxel (20 mg/m2) was administered through peritoneal dialysis catheter, and paclitaxel (50 mg/m2) was injected intravenously. Meanwhile, S?1 was orally administered twice daily at a dose of 80 mg·m-2·d-1 for 14 consecutive days followed by 7?days rest. To observe the patients′ intraoperative and postoperative conditions. Results All the procedures were performed successfully without intraoperative complications or conversion to laparotomy. No 30 day postoperative complications were observed. The median operative time was 33.5 (23?38) min. The median time to first flatus was 1(1?2) days, and the median postoperative hospital stay was 3 (3?4) days, without short?term complications within 30 days postoperatively. The last follow?up was up to July 10, 2019, and the patients were followed for 4(1?6) months. No ascites extravasation was observed and no death occurred in the 6 patients. There was no catheter obstruction or peritoneal fluid extravasation during and after chemotherapy. Conclusion Laparoscopic peritoneal dialysis catheter implantation was safe and feasible for patients with peritoneal metastasis of gastric cancer. The abdominal exploration, tumor staging and the abdominal chemotherapy device implantation can be completed simultaneously, which could simplify the surgical approach, improve the quality of life for patients and further propose a new direction for the development of abdominal chemotherapy.